Endoscope pretreatment liquid preparation device

Abstract

The invention relates to the field of medical instruments, in particular to an endoscope pretreatment liquid preparation device which comprises a bearing table and a shell arranged at the top end of the bearing table, a liquid preparation mechanism is arranged in the shell, and the liquid preparation mechanism comprises a liquid storage tank arranged in the shell. The preparation quantifying assembly is arranged below the liquid storage box and communicated with the liquid storage box, the valve assembly is arranged in the preparation quantifying assembly, a liquid discharging pipe is arranged at the bottom end of the liquid storage box, and the liquid discharging pipe is sleeved with an adjusting sleeve; the preparation quantification assembly comprises a quantification box arranged below the liquid storage box, a quantification piston arranged in the quantification box, a threaded pipe arranged on the quantification piston in a penetrating mode and a liquid outlet formed in the bottom end of the quantification box. The problem that the cleaning effect is poor due to the fact that the precision of manual liquid preparation is not high enough is effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and more specifically, it relates to an endoscopic pretreatment liquid preparation device. Background Art

[0002] The pretreatment of the endoscope is a crucial link, which is directly related to the cleaning effect of the endoscope and the safety of subsequent use. During the pretreatment of the endoscope, liquid preparation is an indispensable step, which requires mixing a specific cleaning agent or disinfectant with water or other solvents in a certain proportion to achieve the desired cleaning or disinfection effect.

[0003] Most traditional endoscopic pretreatment liquid preparation methods rely on manual operation, that is, the operator measures the cleaning agent and water according to experience or simple measuring tools and then mixes them. However, this manual liquid preparation method has many deficiencies. First of all, the accuracy of manual liquid preparation is not high enough. Due to the differences in the operator's experience, the accuracy limitations of the measuring tools, and various uncertain factors during the operation process, it is difficult to ensure the accuracy and consistency of each liquid preparation. This results in the liquid preparation concentration may be too high or too low, thus affecting the cleaning effect. A too high concentration may cause corrosion or damage to the endoscope, while a too low concentration may not be able to effectively remove the stains and microorganisms on the endoscope.

[0004] Secondly, manual liquid preparation also has the problems of cumbersome operation and low efficiency. The operator needs to spend a lot of time and energy measuring, mixing, and checking the liquid preparation, which not only increases the work burden but also may cause safety hazards due to improper operation.

[0005] In order to solve the above problems, an endoscopic pretreatment liquid preparation device is proposed. Summary of the Invention

[0006] (1) Technical Problems to be Solved

[0007] Aiming at the problems existing in the prior art, the present invention provides an endoscopic pretreatment liquid preparation device to solve the problem of poor cleaning effect caused by insufficient accuracy of manual liquid preparation mentioned in the background art.

[0008] (2) Technical Solutions

[0009] To achieve the above object, the present invention provides the following technical solutions: An endoscopic pretreatment liquid preparation device includes a receiving platform and a housing disposed at the top of the receiving platform. A liquid preparation mechanism is disposed inside the housing, and the liquid preparation mechanism includes a liquid storage tank disposed inside the housing, and further includes a preliminary quantitative assembly disposed below the liquid storage tank and communicated with it, and a valve assembly disposed inside the preliminary quantitative assembly;

[0010] A liquid discharge pipe is disposed at the bottom end of the liquid storage tank, and an adjustment sleeve is sleeved outside the liquid discharge pipe;

[0011] The preliminary metering component includes a metering tank disposed below the liquid storage tank, a metering piston disposed inside the metering tank, a threaded tube penetrating through the metering piston, and a liquid outlet disposed at the bottom end of the metering tank;

[0012] The valve component includes a first sealing plug disposed below the metering piston and hermetically sealed corresponding to the tube hole of the threaded tube, a return spring sleeved on the first sealing plug and fixedly connected to the bottom end of the metering piston, a linkage rod disposed at the bottom end of the first sealing plug, and a second sealing plug disposed on the linkage rod and hermetically sealed matching the liquid outlet.

[0013] The present invention is further configured such that the metering piston is provided with an exhaust hole, a connecting rod is movably installed in the exhaust hole, the connecting rod is arranged in an L shape, a limiting block is arranged on a side wall of a section of the connecting rod movably installed in the exhaust hole, one end of the connecting rod is fixedly connected to the circumferential side wall of the first sealing plug, a third sealing plug is fixedly installed at the other end of the connecting rod, the third sealing plug is disposed above the metering piston, and the third sealing plug and the exhaust hole are hermetically matched.

[0014] The present invention is further configured such that a strip-shaped groove is longitudinally formed in the inner wall of the metering tank, and a scale bar is hermetically matched and arranged through an acrylic plate in the strip-shaped groove;

[0015] A strip-shaped block is arranged on the circumferential side wall of the metering piston, and the strip-shaped block is hermetically matched with the strip-shaped groove provided with the scale bar.

[0016] The present invention is further configured such that a partition is arranged in the inner cavity of the housing, and the adjusting sleeve is rotatably installed at the bottom of the partition;

[0017] A rotating ring is arranged on the outer wall of the adjusting sleeve, the upper end of the inner wall of the adjusting sleeve and the lower liquid pipe are connected through a sealing bearing, an internal thread is formed at the lower end of the adjusting sleeve, and the internal thread is hermetically matched with the threaded tube in a threaded manner.

[0018] The present invention is further configured such that the linkage rod includes a threaded sleeve disposed at the bottom end of the first sealing plug, and a threaded rod threadedly connected to one end of the threaded sleeve away from the first sealing plug;

[0019] The threaded rod penetrates through the second sealing plug, and the threaded rod and the second sealing plug are hermetically connected in a threaded manner.

[0020] The present invention is further configured such that a limiting and anti-rotation member is arranged at the bottom of the metering tank, and the limiting and anti-rotation member is disposed above the second sealing plug;

[0021] A rectangular guiding groove is formed at the top of the second sealing plug, and the rectangular guiding groove is movably inserted into the limiting and anti-rotation member.

[0022] The present invention is further configured such that the position-limiting and rotation-stopping member comprises a support rod disposed on the inner wall of the quantitative box, and a rectangular frame disposed on the support rod;

[0023] The rectangular frame and the rectangular guide groove are matched and plugged, and the threaded rod passes through the center position of the rectangular frame.

[0024] The present invention is further configured such that the liquid outlet is in the shape of a tube mouth, and a dial ring is sleeved on the lower end of the circumferential side wall of the liquid outlet;

[0025] One end of the threaded rod passing through the No. 2 sealing plug protrudes from the liquid outlet pipe mouth, and a cross bar is arranged on the end of the threaded rod passing through the No. 2 sealing plug protruding from the liquid outlet pipe mouth, and the cross bar is welded to the lower end of the inner wall of the toggle ring.

[0026] The present invention is further configured such that a liquid inlet is provided at the top of the liquid storage tank, and a dust cover is provided on the liquid inlet.

[0027] The present invention is further configured such that a door panel is provided on the housing;

[0028] The liquid storage tank and the quantitative tank are both made of transparent material.

[0029] (III) Beneficial effects

[0030] Compared with the prior art, the present invention provides an endoscope pretreatment liquid preparation device, which has the following beneficial effects:

[0031] 1. The present invention realizes the automation and precision of liquid preparation through the precise coordination of the preparatory quantitative component and the valve component. The operator only needs to preset the required liquid preparation ratio, and the device can automatically complete the quantitative taking and mixing of the solution, thereby greatly improving the accuracy of liquid preparation. This precise liquid preparation method ensures the consistency of the concentration of the cleaning agent or disinfectant during the endoscope pretreatment process, thereby ensuring the stability and reliability of the cleaning effect.

[0032] At the same time, compared with the traditional manual liquid preparation method, the liquid preparation device provided by the present invention is easier to operate. The operator does not need to perform tedious measuring and mixing operations. The liquid preparation process can be automated through simple settings and adjustments. This not only reduces the workload of the operator, but also greatly improves work efficiency.

[0033] 2. In the present invention, the capacity of the metering chamber can be conveniently adjusted. By rotating the adjusting sleeve, the adjusting sleeve and the threaded tube are adjusted by threading, so that the metering piston is adjusted up and down inside the metering tank, easily realizing the adjustment of the capacity of the prepared solution. This design enables the liquid dispensing device to flexibly adapt to different liquid dispensing requirements. Whether a large amount of solution is needed for immersion cleaning or a small amount of solution is needed for precise proportioning, the operator can easily adjust the capacity of the metering chamber according to the actual situation, ensuring that each liquid dispensing can meet the specific requirements. This flexibility not only improves the practicality of the equipment, but also reduces the waste caused by improper liquid dispensing and the problem of poor cleaning effect, further improving the effect and efficiency of endoscope pretreatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0035] Figure 2 It is a schematic diagram of the structure inside the housing.

[0036] Figure 3 It is a schematic diagram of the partial sectional structure of the liquid dispensing mechanism.

[0037] Figure 4 It is Figure 3 The enlarged schematic diagram at position A in

[0038] Figure 5 It is a schematic diagram of the sectional structure of the preliminary metering assembly.

[0039] Figure 6 It is Figure 5 The enlarged schematic diagram at position B in

[0040] Figure 7 It is Figure 5 The enlarged schematic diagram at position C in

[0041] Figure 8 It is a schematic diagram of the structure of the valve assembly located inside the preliminary metering assembly.

[0042] Figure 9 It is a schematic diagram of the sectional structure of the exhaust hole position on the metering piston.

[0043] In the figure: 1, receiving platform; 2, shell; 201, partition; 202, door panel; 3, liquid dispensing mechanism; 301, liquid storage box; 302, lower liquid pipe; 303, adjustment sleeve; 304, rotating ring; 305, internal thread; 306, liquid inlet; 307, dust cover; 4, preparatory quantitative component; 401, quantitative box; 402, quantitative piston; 403, threaded pipe; 404, liquid outlet; 405, exhaust hole; 406, strip Groove; 407, scale bar; 408, bar block; 5, valve assembly; 501, No. 1 sealing plug; 502, return spring; 503, No. 2 sealing plug; 504, connecting rod; 505, limit block; 506, No. 3 sealing plug; 507, rectangular guide groove; 6, linkage rod; 601, threaded sleeve; 602, threaded rod; 7, limit stop; 701, support rod; 702, rectangular frame; 8, toggle ring; 9, cross bar. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0045] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0046] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0047] For examples, see Figure 1 - Figure 9 , an endoscope pretreatment liquid dispensing device, comprising a receiving platform 1, and a shell 2 arranged at the top of the receiving platform 1, a liquid dispensing mechanism 3 is arranged in the shell 2, and the liquid dispensing mechanism 3 includes a liquid storage tank 301 arranged in the shell 2, and also includes a preparatory quantitative component 4 arranged below the liquid storage tank 301 and connected thereto, and a valve component 5 arranged in the preparatory quantitative component 4;

[0048] A liquid down pipe 302 is provided at the bottom of the liquid storage tank 301, and an adjustment sleeve 303 is sleeved on the outside of the liquid down pipe 302;

[0049] The preparatory quantitative component 4 includes a quantitative box 401 disposed below the liquid storage tank 301, a quantitative piston 402 disposed inside the quantitative box 401, a threaded tube 403 penetrating the quantitative piston 402, and a liquid outlet 404 disposed at the bottom end of the quantitative box 401;

[0050] The valve assembly 5 includes a No. 1 sealing plug 501 which is arranged below the metering piston 402 and seals correspondingly to the tube hole of the threaded tube 403, a return spring 502 which is sleeved on the No. 1 sealing plug 501 and fixedly connected to the bottom end of the metering piston 402, and also includes a linkage rod 6 which is arranged at the bottom end of the No. 1 sealing plug 501, and a No. 2 sealing plug 503 which is arranged on the linkage rod 6 and seals matchingly with the liquid outlet 404.

[0051] The receiving platform 1 is arranged in an L shape, the shell 2 is fixedly installed on the top of the receiving platform 1, and two groups of liquid preparation mechanisms 3 are arranged inside the shell 2, and the two groups of liquid preparation mechanisms 3 are respectively filled with multi-enzyme cleaning solution and water for liquid preparation, wherein the liquid storage tanks 301 in the two groups of liquid preparation mechanisms 3 are respectively used to hold multi-enzyme cleaning solution and water, and the preparatory quantitative component 4 is used to hold the quantitative solution required for liquid preparation, and the communication relationship between the preparatory quantitative component 4 and the liquid storage tank 301 is controlled by the valve component 5, as well as the liquid output of the preparatory quantitative component 4 during liquid preparation.

[0052] Furthermore, a large amount of original solution to be prepared is stored in the liquid storage tank 301, and the liquid storage tank 301 and the quantitative tank 401 are connected by the connection of the threaded tube 403 and the adjusting sleeve 303, wherein a protrusion is provided at one end of the circumferential side wall of the No. 1 sealing plug 501 close to the linkage rod 6, for resisting the reset spring 502, and in the initial state, the No. 1 sealing plug 501 is pushed away from the tube hole of the threaded tube 403 by the reset spring 502, so that the original solution in the liquid storage tank 301 can enter the cavity below the quantitative piston 402 in the quantitative tank 401 through the lower liquid pipe 302, the adjusting sleeve 303 and the threaded tube 403, wherein the quantitative piston 402 can move up and down inside the quantitative tank 401, thereby adjusting the capacity of the cavity below the quantitative piston 402 in the quantitative tank 401, that is, the amount of solution required for preparation. For the convenience of description, the cavity below the quantitative piston 402 in the quantitative tank 401 will be named as the quantitative cavity for repeated description.

[0053] At the same time, in the initial state, under the push of the reset spring 502, the No. 1 sealing plug 501 moves away from the tube hole of the threaded tube 403, thereby pushing the linkage rod 6 to move downward, so that the No. 2 sealing plug 503 on the linkage rod 6 blocks the liquid outlet 404 at the bottom end of the quantitative box 401, so that the original solution flowing in from the liquid storage tank 301 accumulates in the quantitative cavity for preparation.

[0054] Specifically, when liquid preparation is required for endoscopic pretreatment, the linkage rod 6 is moved upward, thereby driving the second sealing plug 503 upward, thus opening the liquid outlet 404 at the bottom of the metering tank 401, enabling the metered preliminary solution in the metering chamber to be discharged. At the same time, the upward movement of the linkage rod 6 drives the first sealing plug 501 upward to block the orifice of the threaded tube 403, preventing the original solution in the storage tank 301 from continuing to flow into the metering chamber during the preparation of the multi-enzyme cleaning solution, which may cause a large deviation in the mixing ratio. After the solution in the metering chamber is discharged, the linkage rod 6 is released, and the return spring 502 pushes the first sealing plug 501 downward to open the orifice of the threaded tube 403, and at the same time drives the linkage rod 6 to drive the second sealing plug 503 to block the liquid outlet 404, so that the original solution in the storage tank 301 is quantitatively refilled into the metering chamber again for the next liquid preparation. The metering piston 402 is provided with an exhaust hole 405, and a connecting rod 504 is movably installed in the exhaust hole 405. The connecting rod 504 is L-shaped, and a limiting block 505 is provided on a side wall of one end of the connecting rod 504 movably installed in the exhaust hole 405. One end of the connecting rod 504 is fixedly connected to the circumferential side wall of the first sealing plug 501, and a third sealing plug 506 is fixedly installed at the other end of the connecting rod 504. The third sealing plug 506 is arranged above the metering piston 402, and the third sealing plug 506 and the exhaust hole 405 are sealingly matched.

[0055] There are two exhaust holes 405 located at eccentric positions of the metering piston 402, and two sets of corresponding connecting rods 504 and third sealing plugs 506 are provided for the exhaust holes 405. The diameter of the connecting rod 504 is smaller than the diameter of the exhaust hole 405. In the initial state, under the push of the return spring 502, the connecting rod 504 drives the third sealing plug 506 to tightly press on the top of the exhaust hole 405 on the metering piston 402, so that the original solution in the storage tank 301 will not flow out through the exhaust hole 405 when added to the metering chamber. When preparing the multi-enzyme cleaning solution, the liquid outlet 404 is opened, and the first sealing plug 501 is driven upward by the linkage rod 6 to block the orifice of the threaded tube 403. The upward movement of the first sealing plug 501 simultaneously drives the connecting rod 504 upward, causing the third sealing plug 506 blocking the exhaust hole 405 to move upward, thus opening the exhaust hole 405 to accelerate the discharge speed of the solution in the metering chamber, thereby improving the preparation efficiency.

[0056] Among them, since the diameter of the connecting rod 504 is smaller than the diameter of the exhaust hole 405, its upward movement will be unstable, and when it comes to subsequent reset, the first sealing plug 501, the second sealing plug 503 and the third sealing plug 506 may not be accurately blocked. Therefore, by setting the limiting block 505, the maximum diameter of the connecting rod 504 is increased, so that when the connecting rod 504 moves up and down, it can adapt to the exhaust hole 405 and can also perform normal exhaust, achieving the effect of improving the solution discharge efficiency. The specific structure is as Figure 9 shown.

[0057] It should be noted that a through hole larger than the maximum diameter of the threaded tube 403 is provided at the top of the metering tank 401, and the through hole is paired with the exhaust hole 405, so that the solution discharge efficiency is better.

[0058] A strip groove 406 is longitudinally provided on the inner wall of the metering tank 401, and a scale bar 407 is hermetically and matchedly provided on the strip groove 406 through an acrylic plate;

[0059] A strip block 408 is provided on the circumferential side wall of the metering piston 402, and the strip block 408 is hermetically and matchedly connected with the strip groove 406 provided with the scale bar 407.

[0060] The metering piston 402 provided with the strip block 408 is slidably and hermetically matched with the inner cavity of the metering tank 401 provided with the strip groove 406 and installed with the scale bar 407, so that the metering piston 402 can only move up and down on the inner wall of the metering tank 401, and when adjusting the capacity of the upper and lower metering chambers, it can be identified according to the scale bar 407, so as to achieve precise adjustment. A partition 201 is provided in the inner cavity of the housing 2, and the adjusting sleeve 303 is rotatably installed at the bottom of the partition 201;

[0061] A rotating ring 304 is provided on the outer wall of the adjusting sleeve 303, and the upper end of the inner wall of the adjusting sleeve 303 and the lower liquid pipe 302 are connected through a sealing bearing. An internal thread 305 is provided at the lower end of the adjusting sleeve 303, and the internal thread 305 is threadedly and hermetically matched with the threaded tube 403.

[0062] When it is necessary to adjust the capacity of the metering chamber, rotate the rotating ring 304 to drive the adjusting sleeve 303 to rotate, so that the adjusting sleeve 303 and the threaded tube 403 are threadedly adjusted, so that the metering piston 402 is adjusted up and down inside the metering tank 401, so as to realize the adjustment of the capacity of the prepared solution.

[0063] The linkage rod 6 includes a threaded sleeve 601 provided at the bottom end of the first sealing plug 501, and a threaded rod 602 threadedly connected to one end of the threaded sleeve 601 away from the first sealing plug 501;

[0064] The threaded rod 602 penetrates through the second sealing plug 503, and the threaded rod 602 is threadedly and hermetically connected with the second sealing plug 503.

[0065] When adjusting the capacity of the metering chamber, the length of the linkage rod 6 also needs to be adjusted accordingly. Otherwise, when directly rotating the adjusting sleeve 303 to adjust the upward movement of the metering piston 402, it will drive the second sealing plug 503 to move upward together through the linkage rod 6, resulting in the liquid outlet 404 being in an open state. Therefore, it is necessary to adjust the length of the linkage rod 6 at the same time.

[0066] Among them, it should be noted that when the capacity of the metering chamber is increased, it is possible to first rotate the adjusting sleeve 303 to adjust the position of the metering piston 402 or first rotate the threaded rod 602 to adjust the length of the linkage rod 6. However, when the capacity of the metering chamber is decreased, it is necessary to first screw the threaded rod 602 out of the threaded sleeve 601 and the second sealing plug 503, and then rotate the adjusting sleeve 303 for adjustment. Because when the adjusting sleeve 303 rotates to adjust the metering piston 402 downward, the second sealing plug 503 on the linkage rod 6 abuts against the liquid outlet 404 and cannot move downward.

[0067] A limit and anti-rotation member 7 is provided at the bottom of the metering tank 401, and the limit and anti-rotation member 7 is arranged above the second sealing plug 503;

[0068] A rectangular guide groove 507 is formed at the top of the second sealing plug 503, and the rectangular guide groove 507 is movably inserted into the limit and anti-rotation member 7.

[0069] The limit and anti-rotation member 7 includes a support rod 701 provided on the inner wall of the metering tank 401, and a rectangular frame 702 provided on the support rod 701;

[0070] The rectangular frame 702 is inserted into the rectangular guide groove 507 in a matching manner, and the threaded rod 602 passes through the center of the rectangular frame 702.

[0071] Four support rods 701 are provided, which are welded to the inner wall of the metering tank 401 in an array. The ends of the four support rods 701 away from the inner wall of the metering tank 401 are welded to the four side walls of the rectangular frame 702, so that the rectangular frame 702 is located at the center of the metering tank 401.

[0072] Furthermore, the rectangular guide groove 507 on the second sealing plug 503 is inserted into the rectangular frame 702 in a matching manner. Under the action of the return spring 502, the second sealing plug 503 is initially in a state of blocking the liquid outlet 404. At this time, the rectangular frame 702 is still inserted into the rectangular guide groove 507 on the second sealing plug 503, but it is only a guiding insertion to prevent the situation that the rectangular guide groove 507 and the rectangular frame 702 do not correspond during the preparation of the multi-enzyme cleaning solution, resulting in the inability of the linkage rod 6 to drive the second sealing plug 503 to move upward, and thus the inability to prepare the liquid.

[0073] Preferably, when adjusting the capacity of the quantitative chamber, the threaded rod 602 needs to be rotated. If there is no plug-in limit of the rectangular guide groove 507 and the rectangular frame 702, then the threaded rod 602 will be difficult to remove and install, or even impossible to remove and install. In particular, when installing, if there is no limit stop 7, the No. 2 sealing plug 503 of the removed threaded rod 602 will move anywhere inside the quantitative box 401, resulting in the inability to install the threaded rod 602 later. However, through the setting of the limit stop 7, after the threaded rod 602 is removed, the rectangular guide groove 507 and the rectangular frame 702 still maintain corresponding plug-in, so that the threaded rod 602 can quickly find the threaded hole on the No. 2 sealing plug 503 and then be installed.

[0074] The liquid outlet 404 is in the shape of a tube mouth, and a dial ring 8 is sleeved on the lower end of the circumferential side wall of the liquid outlet 404;

[0075] One end of the threaded rod 602 that passes through the second sealing plug 503 protrudes from the outlet 404, and a cross bar 9 is provided on the end of the threaded rod 602 that passes through the second sealing plug 503 and protrudes from the outlet 404. The cross bar 9 is welded to the lower end of the inner wall of the toggle ring 8.

[0076] The nozzle of the liquid outlet 404 extends through the shell 2 to the bottom thereof, and the toggle ring 8 is arranged at a section where the nozzle of the liquid outlet 404 is located below the shell 2. The circumferential side wall of the toggle ring 8 is provided with a protrusion to facilitate the operator to push out the liquid. The distance from the cross bar 9 to the bottom end of the nozzle of the liquid outlet 404 is greater than the distance that the reset spring 502 pushes the No. 1 sealing plug 501 away from the nozzle of the threaded tube 403, so that after the toggle ring 8 moves to the bottom, the No. 1 sealing plug 501 can definitely seal the tube hole of the threaded tube 403.

[0077] A liquid inlet 306 is provided at the top of the liquid storage box 301 , and a dust cover 307 is provided on the liquid inlet 306 .

[0078] After multiple liquid preparations, when the capacity of the liquid storage tank 301 is low, it can be refilled.

[0079] The housing 2 is provided with a door panel 202;

[0080] The liquid storage tank 301 and the quantitative tank 401 are both made of transparent material. The operator can open the door panel 202 at regular intervals to view the solution conditions in the liquid storage tank 301 and the quantitative tank 401, so as to add and adjust according to the actual situation.

[0081] Among all the solutions mentioned above, for those involving the connection between two components, welding, the connection with bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those mentioned above that involve fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that these embodiments can be variously changed, modified, substituted, and deformed without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An endoscope pretreatment liquid preparation device, comprising a receiving platform (1), and a housing (2) arranged on the top of the receiving platform (1), wherein: A liquid dispensing mechanism (3) is arranged in the housing (2), and the liquid dispensing mechanism (3) comprises a liquid storage tank (301) arranged in the housing (2), a preparatory quantitative component (4) arranged below the liquid storage tank (301) and in communication with the liquid storage tank (301), and a valve component (5) arranged in the preparatory quantitative component (4); A liquid down pipe (302) is provided at the bottom end of the liquid storage tank (301), and an adjustment sleeve (303) is sleeved on the outside of the liquid down pipe (302); The preparatory quantitative assembly (4) comprises a quantitative box (401) arranged below the liquid storage box (301), a quantitative piston (402) arranged inside the quantitative box (401), a threaded tube (403) penetrating the quantitative piston (402), and a liquid outlet (404) arranged at the bottom end of the quantitative box (401); The valve assembly (5) includes a No. 1 sealing plug (501) arranged below the metering piston (402) and correspondingly sealed with the tube hole of the threaded tube (403), a return spring (502) sleeved on the No. 1 sealing plug (501) and fixedly connected to the bottom end of the metering piston (402), and also includes a linkage rod (6) arranged at the bottom end of the No. 1 sealing plug (501), and a No. 2 sealing plug (503) arranged on the linkage rod (6) and matching and sealing with the liquid outlet (404).

2. The endoscope pretreatment liquid dispensing device according to claim 1, characterized in that: The metering piston (402) is provided with an exhaust hole (405), and a connecting rod (504) is movably installed in the exhaust hole (405). The connecting rod (504) is L-shaped, and the connecting rod (504) is movably installed on a section of the side wall of the exhaust hole (405) and a limit block (505) is provided. One end of the connecting rod (504) is fixedly connected to the circumferential side wall of the No. 1 sealing plug (501), and the other end of the connecting rod (504) is fixedly installed with a No. 3 sealing plug (506). The No. 3 sealing plug (506) is arranged above the metering piston (402), and the No. 3 sealing plug (506) and the exhaust hole (405) are sealed and matched.

3. The endoscope pretreatment liquid dispensing device according to claim 2, characterized in that: The inner wall of the quantitative box (401) is provided with a strip groove (406) in the longitudinal direction, and the strip groove (406) is sealed and matched with a scale bar (407) through an acrylic sheet; A strip block (408) is provided on the circumferential side wall of the quantitative piston (402), and the strip block (408) and the strip groove (406) on which the scale bar (407) is installed are matched and sealed.

4. The endoscope pretreatment liquid dispensing device according to claim 1, characterized in that: The inner cavity of the shell (2) is provided with a partition (201), and the adjustment sleeve (303) is rotatably mounted on the bottom of the partition (201); The outer wall of the adjusting sleeve (303) is provided with a rotating ring (304), and the upper end of the inner wall of the adjusting sleeve (303) and the lower liquid pipe (302) are connected via a sealing bearing. The lower end of the adjusting sleeve (303) is provided with an internal thread (305), and the internal thread (305) and the threaded pipe (403) are thread-sealed and matched.

5. The endoscope pretreatment liquid dispensing device according to claim 4, characterized in that: The linkage rod (6) comprises a threaded sleeve (601) arranged at the bottom end of the No. 1 sealing plug (501), and a threaded rod (602) threadedly connected to an end of the threaded sleeve (601) away from the No. 1 sealing plug (501); The threaded rod (602) passes through the No. 2 sealing plug (503), and the threaded rod (602) and the No. 2 sealing plug (503) are connected in a threaded sealing manner.

6. The endoscope pretreatment liquid dispensing device according to claim 5, characterized in that: A limit stopper (7) is provided at the bottom of the quantitative box (401), and the limit stopper (7) is provided above the second sealing plug (503); A rectangular guide groove (507) is provided on the top of the No. 2 sealing plug (503), and the rectangular guide groove (507) and the limit stopper (7) are movably plugged.

7. The endoscope pretreatment liquid dispensing device according to claim 6, characterized in that: The position-limiting and rotation-stopping member (7) comprises a support rod (701) arranged on the inner wall of the quantitative box (401), and a rectangular frame (702) arranged on the support rod (701); The rectangular frame (702) and the rectangular guide groove (507) are matched and plugged, and the threaded rod (602) passes through the center of the rectangular frame (702).

8. The endoscope pretreatment liquid dispensing device according to claim 7, characterized in that: The liquid outlet (404) is in the shape of a tube mouth, and a dial ring (8) is sleeved on the lower end of the circumferential side wall of the liquid outlet (404); One end of the threaded rod (602) passing through the No. 2 sealing plug (503) protrudes from the liquid outlet (404) pipe mouth, and one end of the threaded rod (602) passing through the No. 2 sealing plug (503) protrudes from the liquid outlet (404) pipe mouth is provided with a cross bar (9), and the cross bar (9) is welded to the lower end of the inner wall of the toggle ring (8).

9. The endoscope pretreatment liquid dispensing device according to claim 8, characterized in that: The top of the liquid storage box (301) is provided with a liquid inlet (306), and a dust cover (307) is provided on the liquid inlet (306).

10. The endoscope pretreatment liquid dispensing device according to claim 9, characterized in that: The housing (2) is provided with a door panel (202); The liquid storage tank (301) and the quantitative tank (401) are both made of transparent material.

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